DUEL BATTERIES

**101 Ron** · 29th January 2009, 11:08 PM

This is some thing that may help.
I used to smaller 550 cca batteries and the original battery tray reworked so i had plenty of room for both batteries.
I think both batteries sit length ways in the compartment instead of cross ways of the original battery.
This gave plenty of room left over to fit any other electrical stuff in the battery box.
My vehicle is a TDI 300 Defender 1994.
I used two simple battery oscillation switches as they are 12 dollars each and take up very little room.
( the marine items most people use is expensive and is big and bulky.)
The dual switches have another advantage is the plastic keys are easily removed and act as a vehicle immobilizer .
Most fridges these days have a low voltage cutout protecting the battery from damage these days.....deep cycle or not.
I find the 550cca standard starting batteries are cheap and do the job.
One will run a modern compressor fridge for two days in normal conditions and the vehicle will start OK on one normally charged battery ....no problem.
I have noted some people manage to get two 750cca batteries into the defender battery box. but it is very, very tight.
Another mod needed is a 3mm wire by passing the battery switches and running up to the dash board to run the radio , alarm system and clock or you find you will be resetting these items every time you turn off both batteries.
I generally run both batteries together and just isolate one If running a fridge and camping lights over night etc.

jayco2005campervanhawk26122007028.jpg picture by 101Ron - Photobucket

Tombie · 29th January 2009, 11:24 PM

Duelling batteries...

Watch the sparks fly

But be wary of Dual duelling batteries on the loose... Twice the trouble... Saw them fighting once, it was reVOLTing...

If caught, charges will be laid

Jock The Rock · 29th January 2009, 11:28 PM

At the moment I have twin Century deep cycles

In my old Landy I had a Yuasa, and an Exide

Both deep cycles

They both fit quite snugly with a bit of fiddeling

If you were in Tassie, I have a spare deep cycle but unfortunately your all the way up there so cant help sorry mate

**Lotz-A-Landies** · 29th January 2009, 11:58 PM

Originally Posted by Jock The Rock

At the moment I have twin Century deep cycles

Yeah?

I have twin deep cycle, charged from the second N70ZZ of a dual battery system. (so 4 batteries in all, on 3 separate/isolated systems) my dual and a tandem beats your twin any-day just kidding - Jock your info on two batteries was useful!

The primary cranking battery is hidden in the original battery box under the seat.

**303gunner** · 30th January 2009, 02:30 AM

Originally Posted by p38arover

duel

• noun 1 historical a pre-arranged contest with deadly weapons between two people to settle a point of honour. 2 a contest between two parties.
• verb (duelled, duelling; US dueled, dueling) fight a duel.
• movie Cool Roadtrip film featuring Dennis Weaver being chased by rogue truck across USA. Gave me goosebumps whenever a Semi appeared in the rear vision mirror.

Best advert possible for long range fuel tanks.

dual

• adjective consisting of two parts, elements, or aspects.
— DERIVATIVES dualize (also dualise) verb dually adverb.
— ORIGIN Latin dualis, from duo ‘two’.

Do Duel Batteries fire Electrons?

**p38arover** · 30th January 2009, 05:07 AM

On my old County:

**barney** · 30th January 2009, 06:11 AM

Originally Posted by Lotz-A-Landies

Yeah, so what? I have twin deep cycle, charged from the second N70ZZ of a dual battery system. (so 4 batteries in all, on 3 separate/isolated systems)

The primary cranking battery is hidden in the original battery box under the seat.

But you'd need three batteries, when you drive the OB van for the ABC

**Pedro_The_Swift** · 30th January 2009, 06:17 AM

This question is covered in
The Good Oil
TECHNICAL QUESTION REGARDING SECOND BATTERY.....

and has been for some time---

Jock The Rock · 30th January 2009, 08:06 AM

Originally Posted by Lotz-A-Landies

Yeah, so what? I have twin deep cycle, charged from the second N70ZZ of a dual battery system. (so 4 batteries in all, on 3 separate/isolated systems)

The man asked if twin batteries would fit under his passenger seat so I just posted up a picture for him ?

And told him they do

**Lotz-A-Landies** · 30th January 2009, 08:26 AM

Originally Posted by barney

But you'd need three batteries, when you drive the OB van for the ABC

No the OB that returned to the ABC was powered by 10 D cells.

Although it was only a manpack not a van so doesn't count.

P.S. Jock the Rock - I was having a giggle not having a go! DUEL BATTERIES

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